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Product Detailed Parameters
- Description：IC REG BUCK ADJ 2A 16LQFN
- Series：Silent Switcher®2
- Mfr：Analog Devices Inc.
- Package：Tray
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：3V
- Voltage - Input (Max)：42V
- Voltage - Output (Min/Fixed)：0.782V
- Voltage - Output (Max)：42V
- Current - Output：2A
- Frequency - Switching：200kHz ~ 2.2MHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：16-TFQFN Exposed Pad
- Supplier Device Package：16-LQFN (3x3)
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Overview
The LT8609SEV#PBF is a synchronous step-down switching regulator from Analog Devices, designed for high-efficiency power conversion. It features an input voltage range of 3V to 42V and delivers up to 2A of continuous output current with a 3A peak capability. The device operates at adjustable switching frequencies between 200kHz and 2.2MHz. It incorporates Silent Switcher architecture to minimize electromagnetic interference (EMI) without requiring external filters. The component supports burst mode operation for low quiescent current consumption and includes integrated soft-start and tracking functions.
Feature Summary
- Silent Switcher architecture minimizes EMI radiation and eliminates PCB layout sensitivity through internal bypass capacitors.
- Adjustable switching frequency allows optimization for efficiency or size across a wide range.
- Burst mode operation ensures ultralow quiescent current during light load conditions.
- Integrated soft-start and tracking capabilities simplify system startup and multi-rail sequencing.
Applications
- Automotive battery supplies
- Industrial distributed power systems
- General-purpose step-down regulation
Procurement Notes
Verify the specific suffix against official datasheets to confirm package type and temperature rating. Confirm availability status as supply may be restricted. Ensure compatibility with required thermal management solutions given the exposed die package design.
Selection Notes
Select this component when high efficiency and low EMI are critical in space-constrained designs. Consider the 2A continuous current limit and 42V maximum input voltage. Evaluate the need for external synchronization or spread spectrum modulation based on system noise requirements.
Part Context
This part belongs to the LT8609 family of synchronous buck regulators. It shares architectural similarities with other Silent Switcher devices but offers specific current and voltage ratings tailored for compact industrial and automotive applications.
Replacement Considerations
LT8609SIV#PBF
FAQ
Does the LT8609SEV#PBF require external EMI filters?
No, the Silent Switcher architecture integrates bypass capacitors to minimize radiated EMI, typically eliminating the need for external filters.
What is the minimum operating input voltage?
The minimum operating input voltage is 3V.
